Corruga ting machine



A. RUBIN.

conn'usnme MACHINE.

APPLICATION FILED OCT. 20, 19l9- Patented June 20, 1922.

2 SHEETS-SHEET I.

A. RUBIN.

CORRUGATING MACHINE.

APPLICATION FILED OCT. 20. me.

1 ,420, 060 Patented June 20, 1922.

2 SHEETS-SHEET '2.

"me WVIE f f l ADOLPH RUBIN, OF ST. LOUIS, MISSOURI, ASSIGNOR I'O SIEBER PRODUCTS MFG. CO.,

OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

' scanner. nine MACHINE.

Specification of Letters Patent. Patgntgd June 2Q), 1922,

Application filed October 20,1919, Serial No. 331,777.

T 0 all whom it may concern:

Be it known that I, AnoLPH RUBIN, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new anduseful Improvement in Corrugating Machines, of which the following is, a full, clear, andexact description, such as will enable others skilledin thejartto which it appertains to make and use the same.

This invention relates to machines of the kind that are used for pressing'grooves or corrugations inisheet material.

The main objectiof my invention is to provide a machine of simple construction for corrugating a sheet of paper that .is adapted to be used in a loose leaf binder so as to form a hinge portion on the sheet that facilitates the turning of the sheet when it it is clamped in operativeposition in the binder.

Another object is to provide a corrugating machine of novel construction that can be adjusted easilyto adapt it to sheets of difierent. thicknesses or to vary the depth of the grooves or corrugations formed in the sheet. r

Other objects and -desirablel-features of my invention will-be hereinafter pointed out. Figure 1 ofthe drawingsis' a top plan view of myimproved corrugating machine.

Figure 2 is a rear elevational view. Figure 3wis aivertical sectional view, taken on the line 3-3 of Figure 2, looking in the direction indicated by .the arrows; and

Figure 4 is a vertical sectional view, taken on the line 4- of Figure 1, looking in the direction indicated by the arrows, the gears and pulleys being shown in elevation.

Referring to the drawings which illustrate a machine constructed in accordance with myinventionand designedto be used for corrugating the rear edge portionof a sheet of paper. that is adaptedto be used in a loose leaflbinder, A and .B designate a pair of grooved rolls between which .a sheet of paper is adapted to bepassed so asjto form a; corrugated portion g on one edge of said sheet, and C designates a table or work support on which the sheet is supported preferably while it is being fed to the rolls A and B, as shown in Figure 1. The rolls Aand B are connected ,to shafts 1 and 2, respectively, that are journaled in a stationary supporting structure D, which shaftsare connected together by gears 3, as shown in Figure 4, so that when power is applied to the shaft 1 the shaft 2 will rotate in unison with same, the shaft 1 being provided with a fixed pulley 4: and a loose pulley 4?, so as to enable said shaft to be driven by a belt (not shown). One of the shafts just referred to is mounted n the supporting structure D in such a manner thatiit can be adjusted to move the rolls A and B toward and away from each otherso as to adapt the machine to sheets of varying thicknesses or to vary the depth of the grooves or corrugations formed in the sheet. In the machine herein illustrated the shaft 1 is journaled in aneccenthe bearing vE that is oscillatinglymounted n the supporting structure D, said bearing B being adapted to be turned or oscillated in one direction so as to move the roll A toward the roll B and turned or oscillated in the opposite direction so as to separate said rolls or increase the space between same. Various means can be employed for, holding the bearing E in adjusted position, but I prefer to provide said-bearing with an kldjustflble cr w v,5. that projects radially from same through a clamping block 6 that fits in acurved Seat? -in,, the upper side of the housing 8 onthe stationary support ing structure D. inwhich the eccentric bearing E is arranged, said housing being provided with'an elongated slot 9, as shown in Figures 1 and 2, soas to provide a clearbearing E it is only necessary to loosen the screw 5. then rotate the bearing E by moving the screw 5 bodily longitudinally of the slot 9, and thereafter tighten said screw so as to clamp the block 6 tightly against the seat-,7, and thus hold the bearing E in adjusted position. The gears 3 previously referred to are inclosed by a housing 10 on the stationary supporting structurel as illustrated in Figure 4. While the particularform of the stationary supporting structure -D is immaterial, so far as my broad idea is concerned, I prefer to form rsaid supporting structure from a casting provided with -horizontally-disposed flanges 11 to which supporting legs 12; are connected, as illustrated in Figure 3, the gear housing lO, previously referred to, being connected to said casting by removable fastening devices 13, so as to enable said housing to be re moved for inspection or repair of the gears 3. Oil holes 14. are formed in the top of the gear housing 10, in the portion of the casting in which the shaft 2 is journaled and in the eccentric bearing E, as illustrated in Figures 3 and 4, so as to enable a lubricating medium to be supplied to the gears and to the shafts on which the rolls A and B are mounted. The rolls A and B are adjustably mounted on the shafts 1 and 2, respectively, so as to enable said rolls to be adjusted longitudinally of said shafts for the purpose of varying the width of the corrugated portion 1 of the sheet. When the roll A is arranged in exact vertical alignment with the roll B said rolls will form a corrugated portion y on the sheet of the same width as the length of the corrugated faces on said rolls. For example, if the rolls A andB are provided with corrugated surfaces one inch in length, the width of the corrugated portion y will be one inch wide when said rolls are in exact vertical alignment witheach other. If said rolls are shifted out of vertical alignment with each other, however, as illustrated in Figures 2 and 4;, the width of the corrugated portion 51 on the sheet will be reduced. Assuming that the corrugated surfaces on the rolls are one inch. long and that the roll A is adjusted longitudinally of the shaft so that only one half of same laps over the roll B, or, in other words, is arranged in vertical alignment with the roll B, the width of the corrugated portion on the sheet will be one half inch. Any preferred means can be used for adjustably connecting the rolls B to their supporting shafts, the means here in illustrated for thispurpose consisting of a socketed set screw 15 in the hubof each roll whose inner end bears against a flat portion on the supporting shaft of the roll when the screw is tightened, as illustrated in Figure 4. When the machine is used for corrugating very thin paper the rolls A and B have to be set so close together that the teeth on-one roll travel in the grooves of the other roll. When the rolls are set in this manner it is necessary to first turn the eccentric bearing E so as to separate the rolls before one roll can be adjusted longitudinallylwith relation to the other so as to vary the width of the corrugated portion to be formed in the sheet. 7 j

In the machine herein illustrated the tab e C not only supports the sheet m while it is beingfed to thecorrugating rolls, but it also determines the position of the corrugated portion y ofthe sheet with relation to the edge of the sheet. This is accomplishedby equipping the table C with a gauge or up- "wardly-projecting flange 16. against which the edge of the sheetis held while it is being fed to'the corrugating rolls A and B and mounting said table in such a manner that it can be adjusted longitudinally of the roll supporting shafts 1 and 2, so as to move the work gauge 16 towards and away from the co-operating grooved surfaces on the rolls A and B betweenwhich the sheet is passed. For example, when the table C is adjusted in the position illustrated in full lines in Figure 1, namely, with the flange or work gauge 16 in alignment with the inner end of the grooved portion of the roll A, the grooved portion y of the sheet will be located at the extreme edge of the sheet. By adjusting the table C longitudinally of the roll supporting shafts into the position indicated by dotted lines in Figure 1, the work gauge or flange 16 on said table will permit the sheet to assume such a position with re lation to the corrugating rolls that said rolls will form a corrugated portion on the sheet some distance away from the edge of the sheet. In the form of my inventionherein illustrated the table C is slidingly mounted on a horizontally-disposed rod 17 that projects laterally from the stationary supporting structure D of the machine, said table being provided on its underside with lugs 18 having holes in same through which the rod 17 passes and one of said lugs being provided with a set screw 19 that can be screwed tightly against the rod 17 so as to clamp the table in adjusted position, said table being provided at its front end with a supporting leg 20 that holds the table in a horizontal position. In a machine of the construction above described loose leaf sheets and other pieces of sheet material can be grooved and corrugated quickly and accurately. More over, the machlne can be adjusted easily to vary the depth of the corrugations formed which said rolls are mounted, a supporting structure in which one of said shafts is jour naled, an ad ustable eccentric bearing 1n said supporting structure in which the other shaft is journaled, a securing means for said eccentr1c bearing comprlsing an ad ustable screw in said bearing projecting radially therefrom through an elongated slot in said supporting structure andprovidedwith a head and a clamping block interposed between said supporting structure and the head of said screw. g V

2. A sheet corrugatingmaohine, comprising a supporting structure, a pair of shafts journaled in said supporting structure and arranged one above the other, grooved rolls mounted on the ends of said shafts and ar ranged so that one roll projects forwardly beyond the other, means whereby one of said rolls can be adjusted towards and away from the other roll and also longitudinally of same, and a work table provided with a gauge against which one edge of the sheet bears.

3. A sheet corrugating machine, comprising a supporting structure, a pair of shafts journaled in said supporting structure and provided with grooved rolls between which a sheet is adapted to be passed, means whereby one of said rolls can be adjusted towards and away from the other roll and also longitudinally of same, a rod projecting laterally from said supporting structure, a work table slidingly mounted on said rod and provided with a work gauge against which one edge of the sheet bears, and means for securing said work table in adjusted position.

ADOLPH RUBIN. 

